Noise protection has been a main concern in Germany for a long time. The contribution of the road surface to the reduction of traffic noise is recorded with correction values and taken into consideration in noise protection calculations which are legally significant in the planning and construction of roads. These...
Low Noise Concrete Pavements in Germany
Jointed Concrete Pavement Mechanistic Design – An Approach to ReLiability Calibration
The design of jointed concrete pavement (JCP) using mechanistic-empirical concepts must incorporate a systems approach in considering material and traffic variability with respect to design and calibration in a mathematically consistent manner. Calibration procedures are necessary to insure the prerequisite accuracy in the design calculation and estImate of pavernelil. peIIuIIIIdlIlx....
Whole Life Costing of Road Pavements The Way Ahead
This paper considers the role of whole life costing in the management process for the road network and explores the background to current interest in England. It describes the development of the computer model, COMPARE, for assessing the whole life costs of bituminous and concrete pavement options. The key components...
Development of a Prectrnssing Method for Joints of Precast Prestressed Concrete Pavement Slabs
As precast prestressed concrete pavement slabs with high strength are resistant to abrasion and enable fast construction, they have been increasingly used in Japan instead of the conventional pavements, especially in heavy traffic roads and airfields. 1-lowever, in precast prestressed concrete slab pavements with plenty of dowelled joints, pumping and...
Reconstruction of Concrete Pavements Using Rubblized Bases
Reconstruction of concrete pavements can be performed by fracturing the existing concrete slabs into small pieces in situ and then placing a leveling course and overlay. The fractured slabs provide a firm base for the new pavement. The technique is increasingly used for the reconstruction of concrete pavements where the...
Concrete Wheel Tracks – The Ecological and Economic Alternative in Rural Road Construction
The changes in the landscape happened during the last 40 years due to human activity have produced a slow change of mind. Therefore it is no wonder that also for road construction nature is taken more into account. The Concrete wheel track is a compromise. Firstly it prevents from covering...
Continuously Reinforced Semi-Rigid Pavements – Experiment and Development
The continuously-reinforced semi-rigid structure consists basically of a thick structural layer placed directly on the foundation when it is made of untreated, permeable materials, or on a draining layer of geotextile when it is treated. This layer is made of concrete having a low cement content and cracking is rnntrnlled...
Factors Affecting the Abrasion Wear of Concrete Pavements
This paper describes the application of a relatively simple and inexpensive laboratory test deiived Iiuiii ASTM procedure C779 for evaluating abrasion resistance of concrete surfaces. Factors affecting the reproducibility and precision of the test are quantified. The paper describes the use of the test to evaluate trial mixes of paving...
Noise Reduction on Concrete Paving Blocks
Today the people in the cities require, more than in former times, a nice looking but also noice reduced pavement. The aim of our one year trial in 1 9w92h,i ch was promoted by the Austrian innovation fund, was to fulfill the requirements mentioned above. 1200 m of new concrete...
Project Instrumentation Installation and Presentation of Results
This article presents the design criteria and operating procedures adopted for the installation of the instrumentation devices to record the variations in "sIowIy changing quantities affected by temperature and humidity as well as by traffic-induced dynamic" phenomena. Interesting trends and correlations between the various physical quantities measured have been found....
The Benefits to Turkey’s Economy of the Selection of the Pavement Superstructure
In this paper we discuss about how to select the best pavement type to minimize the pavement cost. It is studied which pavement type (flexible or rigid pavement alternatively) is more suitable for Turkey taking into account economic criteria. The most important parameters for choosing the type of pavement are...
Early Trafficking of Concrete Pavements – Practical Experience
Fast track paving has been a daily routine in Vienna since the early 80ies. To meet the requirements for opening to traffic (flexural strength at least 3.85 N/mm 2 ) quickly, super-plasticized concrete with a w/c-ratio below 0.42 is used and opened to traffic the second day after placing. If...